indicators for acids

a) It turns litmus paper from blue to red. b) It turns methyl orange from yellow to pink. c) It turns phenolpthalein (alkaline) from deep pink to colorless. It reacts with metals to form their respective chlorides and liberates hydrogen. ..

The amount of an acid (or a base), which is exactly equivalent chemically to the amount of some standard base (or an acid), is determined by an acid-base titration. The point of equivalence is called end point. The solution of a strong acid and strong base w..

Titration is an operation for the measurement of quantities of substances in solution by the method of 'volume analysis'. This process involves adding a solution of the reagent of known concentration (standard solution), taken in a burette (called 'titrant'), to an unknown solution (called analyte)..

The mechanism of acid-base indicator was developed by Ostwald, which offered an explanation for the colour change with change in pH. All acid-base indicators are weak organic acids or bases, which possess different colours in unionized and ionized ..

Indicators are the chemicals that when added to solutions show whether the solution is acidic or basic, by a sudden change of their colour. The common indicators used and the colour changes observed are mentioned belo..

Indicators are substances, which indicate the completion (equivalence point or end point) of a chemical reaction by change in colour. For example, in volumetric analysis, during the titration of sodium hydroxide and hydrochloric acid (taken in the burette), phenolphtha..

Indicators are the chemicals that when added to solutions show whether the solution is acidic or basic, by a sudden change of their colour. The common indicators used and the colour changes observed are mentioned below: ..

Dilute sulphuric acid turns i) Blue litmus paper red. ii) Methyl orange pink. iii) Pink phenolphthalein (alkaline) colourle..

Taste Acids are generally sour in taste. Change of colours with indicators Indicators are substances that undergo a change of colour with a change of acidic, neutral or basic medium. Acids change the colour of indicator..

Acid anhydrides are called symmetrical when the two acyl groups are identical when the two acyl groups are identical and if the two acyl groups are different it is said to be unsymmetrical. Symmetrical anhydrides of unsubstituted carboxylic acids are derived from the names of th..